GMC CK Pickup without Smog Pump 1989, Cat4ward Stainless Steel Long Tube Exhaust Headers by JBA®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Long Tube. JBA long tube headers are the number one choice for maximum performance gains and high RPM efficiency. These long tube designs are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8" one piece flanges, and patented JBA Firecone® merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible so lowered cars do not drag the collectors on speed bumps. Each system includes high quality hardware and thorough instructions for a professional no-leak installation.
Notes: This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.
|Header Material: Stainless Steel|
|Header Style: Long Tube|
|Primary Diameter: 1.625"|
|Collector Diameter: 2.5"|
|Attachment Method: Three Bolt Flange|
- 3/8' thick CNC laser-cut flanges
- Patented JBA Firecone® merged collector
- O2 sensor provisions
- Large diameter mandrel-bent stainless steel primary tubes
- Oversized exhaust ports
- Prevents leaks caused by warping
- Increased hp/tq, improved exhaust scavenging
- Standard on EFI headers for proper connection
- Maximum flow and high RPM efficiency
- Accommodates ported cylinder heads
- Exhaust Headers
JBA® is one of the most trusted names in the aftermarket exhaust industry because of commitment to manufacturing excellence. JBA product designs are original and innovative and always deliver. Power, quality, fit, durability and smog legality are what JBA are known for. In 1987, those qualities were not present in the header or exhaust industry so JBA set out to build products to meet the needs of the growing street performance market.
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